Sometimes less is more. With 10-speeds, 11-48t range and evenly spaced gear steps, the ADVENT X cassette allows riders to shift less often to find the right gear, while still having enough range to ride what they want. Fewer cogs also means less weight, a wider chain for better mud shedding -- it even fits on standard 10-speed freehub bodies so you dont need to buy new wheels for no reason. In short, its everything you want in a high end drivetrain.Specifications:Defined Color: Black Color: Black Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed Cassette Body Type_1: Shimano/SRAM 8, 9, 10 Speed Drivetrain Speeds: 10Range: 11-48 Designed for ebike: Yes